Professional Sewer Ejector Pump Plumbers in San Francisco

In San Francisco, any bathroom, laundry, or fixture located below the main sewer line needs a sewer ejector
pump to move wastewater up to the building drain. Gravity alone won’t do the job — which is why sealed basins,
properly sized pumps, and venting are so important. Our licensed plumbers design systems that match your
fixture load, lift height, and pipe size, so the pump cycles efficiently without short‑cycling or excessive
noise. We also ensure gas‑tight lids, check valves to prevent backflow, and code‑compliant air venting for
safety. For ADUs and basement remodels in San Francisco, our approach starts with an on‑site assessment. We
confirm clearances, electrical supply, and routing for discharge lines. Then we recommend options — from
rugged cast‑iron pumps to quieter, energy‑efficient models — and explain the trade‑offs in head pressure,
gallons‑per‑minute performance, and durability. If your existing basin is undersized or not vented correctly,
we can retrofit a new sealed basin with an external check valve and a serviceable union for future
maintenance. Every installation ends with a full system test: we run fixtures, verify pump activation, check
valve operation, and confirm air‑tight seals. Older homes in San Francisco sometimes inherit DIY ejector
setups that mix storm water or lack backwater protection. Those shortcuts create odors, premature pump
failure, and even sewer backups. We correct these issues by separating drains correctly, adding cleanouts, and
using schedule‑rated discharge piping. Where appropriate, we’ll perform a camera inspection of downstream
lines to ensure there are no hidden restrictions that would overwork your new pump. Documentation, permits,
and inspection coordination are all part of our service. Reliability matters. We stock service parts, offer
24/7 emergency support, and provide maintenance plans for San Francisco property managers and HOAs. Expect
tidy work areas, careful concrete cutting (when needed), and professional patching. We finish by reviewing
operating tips — like what not to flush, how alarms work, and when to call for service — so your system stays
dependable for years.